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Finding the Fourth Proportional to 656,398.49, 984,578.96 and 358,764.12

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Solution

The fourth proportional to 656,398.49, 984,578.96 and 358,764.12 is: 538,135.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,398.49 : 984,578.96 = 358,764.12 : x
  2. Step 2: Convert to fraction form
    656,398.49/984,578.96 = 358,764.12/x
  3. Step 3: Cross multiply
    656,398.49x = 984,578.96 × 358,764.12
  4. Step 4: Simplify right side
    656,398.49x = 353,231,605,051.83
  5. Step 5: Solve for x
    x = 353,231,605,051.83/656,398.49
  6. Step 6: Final answer
    x = 538,135.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.